Gas heater



Sept. 13, 1938. v H, w HART 2,130,086

GAS HEATER Filed June 1, 1936 INVENTOR,

ATTORNEY Patented Sept. 13, 1938 UNITED STATES GAS HEATER Harold W. Hart,

Los Angeles, Calif.

Application June 1, 1936, Serial No. 82,681

7 Claims.

My invention relates more particularly to a type of gas heater which can be used as a portable heater and moved from place to place, or which can be permanently connected with the gas supply in a room, and which stands above the floor in the manner of a stand lamp and so constructed and arranged that it develops a circulating heat current and also a radiated heat directed downwardly and outwardly toward the floor area surrounding the heater.

Amongother objects of my invention are: to provide in a gas heater of the character referred to, an improved burner, preferably in sections and related so as to function as a circular burner unit, yet composed of a plurality of sections each of which receives its supply of gas and air and mixes it for combustion at the discharge outlet of the burner; to provide in connection with a gas H burner an overhanging heat radiating element of refractory material of the radiant type and adapted to be heated by the combustion of the gas mixture thereunder whereby to cause a definite radiation of heat downwardly and outwardly from said element or elements; to provide in a 25 gas heater of the type referred to a construction and arrangement of hood or body which is kept cool around its outer surface, thus reducing any danger to a minimum and preventing possibility of fire from contact of flammable material therewith; to provide in combination with a gas burner or heater of the character referred to an improved thermostatic control for regulating the gas supply to the burner according to a predetermined temperature which it is desired to maintain; to provide a gas heater of the character referred to having a supporting base casting of such weight relative to the top and body thereof that there is little or no chance of its being overturned from accidental contact therewith; to provide a construction and arrangement which permits of its being disassembled into small compass for packing and shipping; and, in general, to provide an improved gas heater of the character referred to which is practical, eificient, economical and ornamental.

In order to fully explain my invention, I have illustrated one practical embodiment thereof on the accompanying sheet of drawing, which I will now describe:

Figure 1 is a vertical sectional view taken through a gas heater embodying my invention;

Figure 2 is a bottom plan view, with parts broken away, taken on line 22, of Fig. 1;

Figure 3 is a fragmentary sectional view taken on line 33 of Fig. 1; and

Figure 4 is a plan view looking down on the base or feet and the thermostat control, taken on line 44 of Fig. 1.

Referring now in detail to the drawing, I have shown a base casting 5, having the legs or feet, 6, S, the top socket I, and the dial supporting parts, 8, 8, with a dial 9 supported therein, with a revoluble dial indicator Ill, on the upper end of a rod I I, threaded at its lower end through a bracket-like member I2, forming a part of a thermostat, designated as a whole T.

Said thermostat T includes a casting I3, secured up under the base casting 5, with small screws, as at I4, and having therein two gas passages I5 and I6, leading to and from a chamber I'I, formed by a diaphragm I8, provided in its center with a diaphragm gasket I9 positioned and adapted to close the passage I5 to said chamber H, as shown. Supported immediately beneath said diaphragm I8 and adapted to engage and move it is a thermostat wafer 20, attached at its under side to a lever 2 I, pivotally supported at 22 in the casting or bracket I2, with the outer end of said lever 2| positioned under the end of said threaded rod II, as shown. A sheet metal housing 23 encloses the parts of said thermostat, as indicated, said housing having the vent openings 23' around its lower end for tempera.- ture influence of the thermostat wafer. A gas supply pipe 24 connects with the gas passage I5, and this pipe 24 can be either pipe or hose, as desired.

Screwed into the thermostat casting I 3, is a vertical pipe 25, jointed at 26, to permit its being taken apart. This pipe communicates with the gas passage I 6 in the casting I3, as indicated. A tubular shield 21 is placed down over the pipe 25 and seated in the socket l in the base casting 5, as shown. The upper end of the tubular shield 2! has seated thereon a cap 28, with opening therethrough for the gas pipe 25, and it also is formed to receive the lower end of an upper tubular shield 29, as indicated. Into the upper end of the tubular shield 29 is fitted a tapering collar 38, screwed on the upper end of the pipe 25, and operating to force the tubular shields 2'! and 29 into rigid relationship with each other and with the base casting I6, and giving rigidity to the supporting structure and the base.

Placed over the upper end of the gas pipe 25, is a cup-like casting 3 I, fitting down over the collar 30, and having formed thereon three supporting arms, 32, 32, 32, for supporting the reflector 33, and the outer shade or ornamental body 34, said reflector 33 and outer shade being separated by a spacing clip 35, fitted down upon the upturned bead-like edges of said reflector and shade, and held in place by a screw bolt 35 up through the outer ends of the arms 32.

Screwed down upon the top of the casting 3!, is a triangular casting 3?, having its center open to receive the tapered screw end of the gas pipe 25, and having gas passageways extending 3i outwardly through its three arm portions, as seen in Fig. 2, and also in Fig. 1. The outer ends of said arm portions are shown upturned or provided with jet nozzles, as at 38, and are formed to receive each a burner section 39, held in place thereon by small screws 2? The burner is really three burners, or burner sections, in one unit, with three separate Venturi tubes 3Q, each receiving the gas jet at 38, and having in its upper part a projecting baflie lip 39' in its head portion, designated 4!. The upper end of each head. portion 3! is provided with transverse discharge slots 32, at which the combustion takes place around the full circle of the three burner bodies,

as shown.

Supported by means of small brackets, 43, to the inner middle part of the reflector 33, is a hollow shell-like structure 44, providing air space edge of the lower member of the shell 44. Said radiant elements are of segmental form and when placed together form a conical surface with the usual small projections 41 on their overhanging surfaces. Supported around the burner head 4|, upon the arms 32, is a wire screen 49, for safety against any falling part and for protecting the open fiamefrom children.

As a result of a great deal of experimental work, I have worked out a construction and arrangement of the several parts of my heater so as to get the proper amount of heat radiated downwardly and outwardly and the proper amount of heat going up through the heater andcreating a circulating current of heat, and also the reflected heat from the reflector. Consequently my heater can be placed near furniture, close to a wall or even against lace curtains without any danger therefrom. The screen 49, not only serves as a protection from the possibility of any of the radiant elements falling out of place, and as a protection to prevent children getting to the flame, but the screen is an important factor in preventing too much heat being radiated downwardly.

The reflector 33, which is preferably made of aluminum, is placed at just the proper angle to reflect the heat outwardly in all directions and to the body of a person sitting close to the heater, thus making for comfort. The outer shade or body 34 is so placed with an inch or more space for air between it and the reflector 33, that said outer shade 34 is always cool. The insulating shell 44 above the burner and the radiant segments prevents too much heat from passing upward through the center of the heater, and although a curtain or other article might be blown over the top of the heater, it will not be burned or damaged.

The base casting structure is sufficiently heavy relative to the top part of the heater that it will right itself even though it be tilted to an angle of 25 degreesyand even though knocked over on its side, it is not a fire hazard for the reason that the burner is of the Bunsen type, is fastened securely and will remain burning evenly.

By providing the large hole through the center of the sectional burner and enough distance between the burner and the radiant elements, the air will circulate around the burner from all sides and up through the center to allow the best mixture and most perfect combustion.

. The thermostat, being protected under the base, is not subject to the radiated heat, but is positioned where the cool air is always more noticeable near the floor and where it will function more effectively to regulate the temperature of the room according to the desire of those using it and it can be set to function automatically to maintain a predetermined temperature.

-I am aware that changes in the general construction and arrangement of my improved heater can be made without departing from the spirit thereof, and I do not, therefore limit my invention to the embodiment thereof shown and described, except as I may be limited by the hereto appended claims.

I claim:

1. A gas heater including in combination a base, a gas supply pipe having its lower end anchored in said base and standing upright like a stand lamp, a gas burner mounted on the upper end of said pipe, a heat radiating member of 30 inverted'conical form supported by said pipe centrally above said burner and adjacent thereto, whereby to be directly heated thereby, and a surrounding shade supported by said pipe at its upper end around said burner for reflecting radiated heat from said radiating member.

2. A gas heater including in combination a base, a gas supply pipe having its lower end anchored in said base and standing upright like a stand lamp, a gas burner mounted on the upper end of said pipe, a heat radiating member of inverted conical form supported by said pipe at its upper end centrally above said burner and adjacent thereto to be directly heated thereby, a shield immediately above said heat radiating member, and a double wall shade surrounding said heat radiating member and said shield and supported by arms from the upper end of said gas supply pipe, whereby said gas heater has the appearance of a stand lamp with shade.

3. A gas heater including a base to stand upon the floor, a gas supply pipe anchored at its lower end to said base and extending upwardly therefrom, tubular finishing means around said pipe, a gas burner mounted upon the upper end of said gas supply pipe, a heat radiating member immediately above said burner to be heated thereby, a shade surrounding said radiating member for reflecting radiated heat downwardly, said heat radiating member and said shade being supported by the upper end of said gas supply pipe and the tubular finishing means, a guard screen around said burner, within said shade and under said heat radiating member, and means in said base for connecting a gas supply to said gas supply pipe.

4. A gas heater including a base, a tubular member anchored at its lower end to said base and standing upright like the standard of a stand lamp, a gas pipe connected to said base and extended up through said tubular member, means for connecting a gas supply to said gas pipe underneath said base, with valve means therefor, a gas burner mounted on the upper end of said gas pipe, supporting arms from the upper ends of said gas pipe and said tubular member extending outwardly and upwardly and having supported thereon a shade surrounding said gas burner, said shade having a double wall, a heat radiating member of inverted conical form having its central small end centrally above said gas burner to be directly heated thereby, a screen around said burner and under said heat radiating member, and a shield directly over said heat radiating member within said shade.

5. A gas heater having a vertical sup-port supporting it above the floor like a stand lamp, a gas supply pipe leading thereto, a base supporting said pipe and said heater, said base having .a shield portion, a thermostat connected into said gas supply under said base shield portion to be sheltered thereby from downwardly directed heat from said heater, whereby toautomatically regulate the gas supply, means for adjusting said thermostat to predetermined temperature marks, and a heat reflecting member associated with said heater for directing heat downwardly toward the floor.

6. A gas heater including a vertical stand pipe, a base member supporting said pipe and having a shield portion, and having means associated therewith for connecting a supply of gas tosaid pipe, a thermostat control mechanism under said base shield portion and connected into said gas supply for automatically regulating the flow of gas, said thermostat mechanism being covered by the shield portion of said base, whereby to shelter it from radiated heat from said heater, a burner at the upper end of said pipe, and a heat radiating member mounted adjacent said burner to be heated directly thereby, whereby to radiate heat downwardly and outwardly.

7. A gas heater of stand lamp form including a base, a gas supply pipe anchored at its lower end in said base and standing upright, a burner mounted on the upper end of said pipe, a heat radiating member mounted directly above said burner and overhanging the same at an angle between the vertical and the horizontal, whereby to be directly heated from said burner, a shade around said heat radiating member and forming a guard and reflecting means for deflecting heat downwardly, said heat radiating member, said shade and said burner being supported from the upper end of said gas supply pipe by arms radiating outwardly therefrom, and thermostatic control mechanism connected into said gas supply pipe, under said base and shielded by a part of said base from radiated heat, whereby the temperature at the floor controls said thermostat mechanism.

HAROLD W. HART. 

